Aer Arann (styled as Aer Arann Regional) was a regional airline based in Dublin, Ireland. The airline mainly operates scheduled services on behalf of Aer Lingus Regional, with a fleet of 10 aircraft dedicated to the operation. The airline has four bases in Cork, Dublin, Shannon and Waterford which operate under the Aer Lingus Regional brand. Aer Arann Islands is a small subsidiary of Aer Arann, the airline operates between Connemara and Inis Mór, Inis Main and Inis Oir Islands, 3 aircraft are dedicated to the Islands operation.
Aer Arann was owned by Everdeal Ltd, which is 95% owned by Pádraig Ó Céidigh, Aer Arann's Chairman, and 5% owned by the Stobart Group, through 35 preference shares of €1 each acquired on 10 November 2010. Stobart Group has an option to increase its shareholding by a further 27.5% to 32.5%.